“…Symbolic Execution (SE) [26,31] is a core technique in program verification, which is recently receiving increasing attention for concurrent systems [29,6,7]. For the Active Objects [8] concurrency model, experiences with multiple case studies [12,23,24] led to the design of the Behavioral Program Logic (BPL) [19], a dynamic logic that generalizes SE to Behavioral Symbolic Execution (BSE).…”